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课件网) Unit 6 Celebrating the Big Days Grammar in use 1 2 在语境中理解序数词的形式、意义和使用。 学习目标 Understand the form, meaning, and use of Ordinal Numbers. Understand the different pragmatic functions(语用功能) of present simple tense and present continuous tense. 在语境中理解一般现在时和现在进行时的不同语用功能。 Part 01 Ordinal numbers 序数词 1 3 Which floor does he go He goes to the _____ floor. A. three B. third third Third or three Activity 1 Look at the pictures and read the sentences. Pay attention to the words in bold. I'm thirteen years old. This is my thirteenth birthday. Teachers' Day is on September 10th. About one hundred people are taking part in the dragon boat race. cardinal numbers 基数词 ordinal numbers 序数词 Grammar in use Ordinal numbers 序数词 1.数词分为基数词和序数词。 基数词表示数量， 序数词表示顺序。 1 one first 1st 15 fifteen _____ 15th 2 two second 2nd 20 twenty twentieth 20th 3 three third 3rd 21 twenty-one twenty-first 21st 4 four _____ 4th 40 forty fortieth 40th 5 five fifth 5th 50 fifty _____ 50th 8 eight _____ 8th 90 ninety _____ 90th 9 nine ninth 9th 100 one hundred one _____ _____ 12 twelve twelfth 12th 101 one hundred and one one hundred and_____ 101st 1 one first 1st 15 fifteen _____ 15th 2 two second 2nd 20 twenty twentieth 20th 3 three third 3rd 21 twenty-one twenty-first 21st 4 four _____ 4th 40 forty fortieth 40th 5 five fifth 5th 50 fifty _____ 50th 8 eight _____ 8th 90 ninety _____ 90th 9 nine ninth 9th 100 one hundred one _____ _____ 12 twelve twelfth 12th 101 one hundred and one one hundred and_____ 101st first 1 one first 1st 15 fifteen _____ 15th 2 two second 2nd 20 twenty twentieth 20th 3 three third 3rd 21 twenty-one twenty-first 21st 4 four _____ 4th 40 forty fortieth 40th 5 five fifth 5th 50 fifty _____ 50th 8 eight _____ 8th 90 ninety _____ 90th 9 nine ninth 9th 100 one hundred one _____ _____ 12 twelve twelfth 12th 101 one hundred and one one hundred and_____ 101st first fourth eighth 100th hundredth fifteenth 1 one first 1st 15 fifteen _____ 15th 2 two second 2nd 20 twenty twentieth 20th 3 three third 3rd 21 twenty-one twenty-first 21st 4 four _____ 4th 40 forty fortieth 40th 5 five fifth 5th 50 fifty _____ 50th 8 eight _____ 8th 90 ninety _____ 90th 9 nine ninth 9th 100 one hundred one _____ _____ 12 twelve twelfth 12th 101 one hundred and one one hundred and_____ 101st first fourth eighth hundredth fifteenth 100th Pair plete the table and learn how to form ordinal numbers. fiftieth ninetieth Activity 2 second(2nd) third(3rd) first (1st) three one two 一二三，特殊记 seventh(7th) fourth (4th) sixth(6th) seven six four th要从四加起 基数词变序数词 ninth(9th) fifth(5th) eighth (8th) five eight nine 8去t, 9去e twenty-first (21st) twelfth(12th) twentieth(20th) twenty-one twenty twelve ve要用f来替 整十变y为ie 若遇几十几， 只变个位就可以。 基数词变序数词 3. 序数词的缩写：_____ first second third fourth twentieth one hundredand eleventh ... ...
